Hey! I hope this helps you!
Answer:
5. B
6. F
7. D
8. J
9. A
10. -1
Step-by-step explanation:
5. Putting a parentisis around an expression that only uses one symbol (addition in this case) doesn't affect the way it gets solved. So, the expressions 4 + 2 + x and (4 + 2) + x are equivalent.
6. There are 4 drinks, 1 hamburger, and 2 fries pictured. The expression uses d for drinks, h for hamburger, and f for fries. So 4d + h + 2f is the total order.
7. 140
2. 70
2. 35
5. 7 Prime Factorization = 2 squared • 5 • 7
8. J cannot be writen as an expression because it includes an equals sign. An expression doesn't contain an equals sign. An equation contains an equals sign.
9. Using the distributive property we can say that 3(2x + 5) is equal to 6x + 5. First we multiply 3 • 2x = 6x. Then we multiply 3 • 5 = 15. Then we add 6x + 15.
10. 9 + 3 ( 10 ÷ 2) - 5 squared
9 + 3 (5) - 5 squared
9 + 3 (5) - 25
9 + 15 - 25
24 - 25
-1
